Auxiliary brake for automobiles.



J. O. MICHAUD.

AUXILIARY BRAKE FOR AUTOMOBILES.

APPLICATION FILED FEB. 3. 1911.

1,243,969. 7 Patented Oct. 23, 1917.

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ninrrnn srn rns rarnnr onnron .rosnrn 0. MIGHA'UID, or roar KENT, MAINE,

AUXILIARY BRAKE FOR AUTOMOBILES.

vehicles, the primary object of my inven- 7 tion being the provision ofa supplemental brake for Ford automobiles.

More specifically, one of the objects of my invention resides in theprovision of a brake for Ford cars which may be readily attached to thecar without necessitating the removal of any parts and which Will actdirectly upon the rear wheels thereby taking all strain ofi' the rearaxle and diiferential.

A still further object of my invention resides in providing a brake ofthis character which will prevent chattering and grinding as the car isbeing brought to a stop, being noiseless in its action.

In carrying out my invention, I provide brake bands operating about the.brake drums of the wheels, and a further object of my invention is to soconstruct the brake bands and the correlated operating mechanisms thatthere shall be no right and left parts, any part being applicable toeither wheel, as may be desired.

With these and other objectsin view, my invention will be more fullydescribed, illus-- trated in the accompanying drawings, and thenspecifically pointed out in the claims which are attached to and formapart ofthis application. l

In the drawings:

Figure 1 is a fragmentary sectional View of a Ford automobile, showingmy invention applied thereto; j

Fig. 2 is a fragmentary plan view ofthe brake mechanism applied; r

Fig. 3 is a sectional view taken through .the rear axle, showing one ofthe brake mechanisms proper;

Fig. 4 is a sectl of the connected ends of the resilient brake bandforming part of each brake structure;

" Specification of Letters Patent.

onal view taken on the .line 4-4 of Fig. 3; r

Fig. 5 is a fragmentary perspective v1ew' Patented Oct. as, 191?.

Application filed February 3, 1917. Serial Ila-146,481.

Fig. 6 is a perspective view of the foot pedalfor operating mysupplemental brakes. 55

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters. r

- In order to insure a clear and accurate understanding of my inventionI have illustrated it in connection-with a Ford automobile, indicated at10, having the usual frame 11, rear axle 12,-rear axle housing tube 13and rear axle brake band housings 14. The

ordinary rear. radius rods 15 have their forked terminals 16 secured tothis housing by radius rod bolts 17 in the customary manner, and therear wheels 18 carry the usual brake drums 19; The emergency brake lever20 is swingingly mounted upon the controller shaft 21 and brake pullrods 22 connect it in the usual manner to the hub brake cam levers 23 bymeans ofwhich the usual internal expanding brakes are operated,

.My invention resides in the provisionof an additional pair of brakesof. the con tracting band type which may be readily applied about thebrake drums without necessitating the removal of any of'the regularautomobile parts and without affecting the operation of any of thebrakes now provided. Incarrying out this invention, I provide a pairof'resilient brake bands .24 having suitable linings 25. These bandsare, of course, proportioned to engage loosely about the brake drums ofthe rear wheels and the free ends-of each brake band are doubled uponthemselves and riveted, or otherwise fastened, as shown at 26, to pro-vvide upstanding spaced loops or eyes 27, each of which "is slotted, asshownat 28. A draw rod 29 projects through the slots of these eyes andpins or bolts 30 passed through the eyes and-bearing over the rodstrengthens the eyes. That end of the draw rod engaging in-the rear eyeis threaded to receive an adjusting nut 31 and a helical spring 32, en-'gaging between the eyes and about the rod,

serves to normally hold the brake band in expanded position. I

ings, in the manner shown in Fig. 3, by the same bolts securing theradius rods and at its upper end this bracket is rebent upon itself toprovide a horizontally disposed 0utwardly directed guide loop 84 toreceive the free end of the draw rod 29. This end of the draw rod isdoubled upon itself toprovide an attaching loop having spaced sideportions which slide in the guideloop 3d so that the draw rod is heldagainst any turning movement during operation. Thelower end of thebracket 33 is provided with an outwardly and upwardly curved terminal 36forming a support for the lower portion of the brake band when thelatter is expanded and also holding the brake band against lateralmovement.

Brake pull wires or ropes 40 are adjusta bly connected to the attachingloops 35 of the pull rods 29 at one end andat their other ends to theends of an evener bar 41 by clevises 42. This evener-bar is slidablysupported upon one of the side members of the frame 11 by a bracket 43,as clearly shown in Figs. 2 and 6 of the drawings A foot pedal 44 hasits shank projected'downwardly through the bottom .or floor of thevehicle inan offset extension of the emergency brake lever slot andterminates ina lateral portion 45 which with a half bearing portion 46,pr0vides a means for attaching it about the hand lever controller shaft21, as'shown in Fig. 1. Bolts 47 and nuts &8 may be provided forsecuring the 7 bearing members together and care should be taken thatthe pedal so mounted is free for turning movement with respect to thecontroller shaft. A link 49 connects the intermediate portion of thispedal with the evener bar. The intermediate portion of the shank of thefoot pedal is 'ofi'set laterally in order that it'may passthrough anoflset extension of the emergency brake lever slot and a foot pedalproper 50 is provided its outer side with a rearwardly extending armterminating in an eye 51 which fits over the upper end of the pedalshank. By this e ns, h f Q Piece of t Pedal sl ated. pithin convenientreach of the operators oot. V

In operation, both the usual service brake up n t e inn r e s: of thbrake rums. be employed in the usual manner, ifdesired, However, as a'rule, my supplemental brake will be employed forall purposesasitoperates directly upon the brake drums carried by the rear wheels andbhGIBbY-IQHQYBS the difierential, rear axle and universal joint of all,unnecessary strains. As a result, the usual chattering and grindingheard when applying the brakes is preYGhted and the,

life and service of the car and safety oi its e ation s eat y nh nced os it will be understood that my supplemental rak m y e a a h d di e t y9 th usua service brake pedal, if desired, tact, 1;

the rear radius rod thereto, said bracket at its upper end having alaterally directed loop adapted to project across the brake drum, aresilient brake band adapted to en i i let ra dru means no ma y hol ingthe band in expanded position, and meansslidably supported by thebracket for l pp fihs the akend nd for dr win th brak an nto ngagem witthe ra .clf hma 2. In a supplemental brake for automobil e, a bra k aapted r attachm n to a b ak drum hhu ihg a rmed w th a laterallydirected loop adapted to project acrossthe brake drum, a brake bandadapted to encircle the brake drum and provided at its ends withsubstantially radially projecting eyes formed with slots, a drawrodseating in the slots and formed at one end with draw loop slidable inthe loop of the bracket, a nut threaded upon the opposite e d o the d awrod; pr g messing about the draw rod and between the eyes, and renf r ngmeans, passe reush th e above the draw rod c 3. In a supplemental brake.for auto mo-v b ile s, a bracketiadapt-ed for attachmentto a brake drumhousing, a resilient brake band adapted to surround the brake drum,means lid b y supported hy't e br ke f 19: PQ 't he brak han nd to gtenin t to bring it into engagement. with the brake rum, esu v norma lyh ld g e and in exp nde ppsit 0n, d means projecting rom he ashe o rp nine e lower portion of the brake, band and for holding the brake h ndaga nst la eral ov m nt- 111 lpiilemshte bli i s for aut m bil g rai brke band ap e o, circle. the. brake drums of the rear wheels, bracketsadapted for attachment to the brake drum housings, means carried by thebrackets for tightening the, bands, aitevener adapted. to be slida ly.slip-po te 19911 t frameof the, automobile, draw rods connect: ing theevener with the, brakeiband tighten ingmeahe eet peda dapte t h eantedfor free swinging movement about ,-t11e hand. lever hhl nll shaft of heautom hil-ei a d q qt hg' II WSb ZWW h ee pedal and evener.

5. In supplemelflta1 brakes for automobiles, a pair of brakebandsadapted to encircle the brake drums, o fthe drive wheels, hitc e -S'vadap eder a t chme t to e eaks umihhiisiees, means arr ed b the;

brackets for supporting the brake bands ject at its opposite end throughthe same and tightening them, an evener adapted to slot in the floorboards as the hand lever, a be sliclably supported upon the frame of theand a foot pedal having an off-set shank automobile, connecting meansbetween the terminating in a loop adapted to engage 5 evener and thebrake band tightening means, about the upper end. of the lever arm.

a lever arm adapted for rotatable connec- In testimony whereof I afliXmy signature. tion at one end with the hand lever controller shaft ofthe automobile and to pro- JOSEPH O. MIGHAUD. [11.5.]

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

